Plate valve



Oct 16 1923.

, J. w. JONES PLATE VALVE 2 Sheet-Sheet 1 Filed Oct. 5, 1922 INVENTOR 8 E A B I yo-sfphnybned Hi5 ATTCIJR EY Oct. 16, 1923. 1,410,625 J. w. JONES PLATE-VALVE Filed Oct. 5, 1922 '2 Sheets-Sheet 2 INVENTOR Ell 05G 12 I'll fl'ones.

Patented Get. 15, 13.923.

vUlWTEE STATEfi rn'raar orator.

JOSEPH W. JONES, 0F COBNING, NEW YORK, ASSIGNOB TO INGEBSOLL-BAND GOM- FANY, OF JERSEY CITY, NEW JERSEY, A CORPORATION OF NEW JERSEY.

PLATE VALVE.

Application filed October 5, 1922. fierial Ho. 592,467.

To all whom it may concern:

Be it known that l, JosnrH W. JoNEs, a citizen of the United States, and a resident of Corning, in the county of Steuben, State of New York, have invented a certain Plate Valve, of which the following is a specification, accompanied by drawings.

This invention relates to plate valves, but more particularly to a plate valve of the type in which a circular valve plate'lifts between the valve seat and a stop plate and is returned to its seat by means of suitable springs.

The objects of the invention are'to improve upon the construction of such valves, especially valves of relatively small diameter intended for the smaller sizes of pumps and compressors and obtain a simple and p cheap valve having all the advantages of adequate port area and maximum lift found in larger valves, but without complicated or expensive parts.

Other objects of the invention are to reduce the clearance required in the pump or compressor due to the valves thus producing hi her volumetric elliciency, and produce a smal valve of the type described having the minimum amount of spring tension so that small power is required for operating, which is a particularly important factor in vacuum pumps, for instance.

Further objects of the invention will hereinafter appear and to all of these ends the invention consists of a valve having the features of construction, combinations of elements and arrangement of parts having the general mode of operation substantially as hereinafter described and claimed in this specification, and shown in the accompanying drawings, in which Figure 1 is a transverse sectional view of the complete valve with the parts assembled.

Figure 2 is a detail view showing the valve seat in transverse vertical section,

Figure 3 is a perspective view of the valve late, a P Figure 4 is a perspective view of one of the valve springs,

Figure 5 is a perspective view of another valve spring,

Figure 6 is a perspective view of the two valve springs assem led and one superimposed upon the other,

Figure 7 is a transverse sectional view of the stop plate, and

Figure 8 is a horizontal sectional view of Figure 7 taken on the line 8-8 looking in the direction of the arrows.

Referring to the drawings, the valve seat A of the valve, is provided with the required ort B over which the circular valve plate is adapted to be seated in the usual manner. A bolt D having a head E and a nut F is provided for holding the parts of the valve to ether.

A stop p ate G, in this instance held against the valve seat Aby means of the bolt'D, is provided with a portion H extending over the plate valve C, which lifts from its seat and is adapted to be returned by means of springs J and K interposed between the valve plate C and the stop late G.

The springs J and K in this instance are formed as a pair and have substantially the same diameter as the valve plate C. The springs are preferably formed out of flat s eet metal, having greater width than thickness and one sprin is superimposed upon the other between he valve plate and the stop plate.

Two springs of the type described have been found to operate satisfactorily and well, although the invention is not limited to two springs and more could be used, if desired. The springs J and K are oppositely coiled, that is one forms a right hand coil and theother forms a left hand coil, and each spring preferably consists of one convolution through an arc of substantially 360. In placing the s rings one upon the other and arranging t e two between the valve plate and the stop plate, the open ends (Zr-b and cd are located substantiall diametrically opposite each other, an the open ends of one spring lie over solid portions of the other spring as indicated in detail in Figure 6.

In accordance with the construction shown and with the springs formed and arranged as described, light spring tension is obtained, but of suflicient strength to cause the valve to operate efficiently and without sprin breakage. The tension in the sprin is su stantially uniformly distributed and the deformation of the springs may occur as rapidly as required for the operation of the valve without placing undue strain up on any particular portion or portions of the springs. The two springs together 'form Oil a unitary construction and yet each spring is separate and independent and forms an element of the unit.

I claim:

1. A plate valve comprising a valve seat, a circular valve plate, a stop plate extending over the valve plate, and a pair of oppositely coiled 5 rings, having substantially the diameter 0 the valve plate superimposed one on the other and arranged between the valve plate and stop plate.

2. A plate valve comprisin a valve seat, a circular valve late, a stop p ate extending over the valve p ate, and a pair of oppositely coiled springs formed of flat sheet metal having greater width than thickness, said springs eing of substantially the same diameter as the valve plate and being superimposed one on the other and arranged between the valve plate and the stop plate.

3. A- plate valve comprising a valve seat, a circular valve plate, a stop plate extending over the valve plate, and a pairof oppositely coiled springs formed of fiat sheet metal havin greater width than thickness, and each Eavin one convolution, said springs being of su stantially the same diameter as the valve plate and being superimposed one on the other and arranged between the valve plate and stop plate.

4. A plate valve comprising a valve seat, a circular valve plate, a stop plate extending over the valve plate, and a pair of oppositely 'coiled springs formed of flat sheet metal having greater width than thickness, and each aving one convolution, said springs being of substantially -the same diameter as the valve plate and being superimposed one on the other and arranged between the valve plate and stop plate with the open side of the convolution constituting each spring over said solid portion of the other spring.

5. A plate valve comprising a valve seat, a circular valve plate, a stop plate extending over the valve plate, and a pair of oppositely coiled springs formed of flat sheet metal having reater width than thickness and each having one convolution, said spring being of substantially the same diameter as the valve plate and bein superimposed one on the other and arrange between the valve plate and stop plate with the open ends of the convolution constituting each spring located substantially diametrically opposite each other and over solid portions of the other spring.

6. A plate valve comprising avalve seat, a circular valve plate, a stop plate extending over the valve plate, and a pair of oppositely coiled springs formed of flat sheet metal having greater width than thickness, said springs being of substantially the same diameter as the valve plate and being superimposed one on the other and arranged between the valve plate and the stop plate with the open ends of the springs located substantially diametrically opposite each other.

In testimony whereof I have signed this specification.

JOSEPH W. JONES. 

